Home / 664,533.30-916,736.58-434,989.47

Finding the Fourth Proportional to 664,533.30, 916,736.58 and 434,989.47

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Solution

The fourth proportional to 664,533.30, 916,736.58 and 434,989.47 is: 600,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,533.30 : 916,736.58 = 434,989.47 : x
  2. Step 2: Convert to fraction form
    664,533.30/916,736.58 = 434,989.47/x
  3. Step 3: Cross multiply
    664,533.30x = 916,736.58 × 434,989.47
  4. Step 4: Simplify right side
    664,533.30x = 398,770,759,063.81
  5. Step 5: Solve for x
    x = 398,770,759,063.81/664,533.30
  6. Step 6: Final answer
    x = 600,076.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.